lnet/klnds/socklnd/socklnd_modparams.c

   1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
   2  * vim:expandtab:shiftwidth=8:tabstop=8:
   3  *
   4  * Copyright  2008 Sun Microsystems, Inc. All rights reserved
   5  *
   6  *   Author: Eric Barton <eric@bartonsoftware.com>
   7  *
   8  *   Portals is free software; you can redistribute it and/or
   9  *   modify it under the terms of version 2 of the GNU General Public
  10  *   License as published by the Free Software Foundation.
  11  *
  12  *   Portals is distributed in the hope that it will be useful,
  13  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *   GNU General Public License for more details.
  16  *
  17  *   You should have received a copy of the GNU General Public License
  18  *   along with Portals; if not, write to the Free Software
  19  *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20  */
  21
  22 #include "socklnd.h"
  23
  24 static int sock_timeout = 50;
  25 CFS_MODULE_PARM(sock_timeout, "i", int, 0644,
  26                 "dead socket timeout (seconds)");
  27
  28 static int credits = 256;
  29 CFS_MODULE_PARM(credits, "i", int, 0444,
  30                 "# concurrent sends");
  31
  32 static int peer_credits = 8;
  33 CFS_MODULE_PARM(peer_credits, "i", int, 0444,
  34                 "# concurrent sends to 1 peer");
  35
  36 static int peer_buffer_credits = 0;
  37 CFS_MODULE_PARM(peer_buffer_credits, "i", int, 0444,
  38                 "# per-peer router buffer credits");
  39
  40 static int peer_timeout = 180;
  41 CFS_MODULE_PARM(peer_timeout, "i", int, 0444,
  42                 "Seconds without aliveness news to declare peer dead (<=0 to disable)");
  43
  44 static int nconnds = 4;
  45 CFS_MODULE_PARM(nconnds, "i", int, 0444,
  46                 "# connection daemons");
  47
  48 static int min_reconnectms = 1000;
  49 CFS_MODULE_PARM(min_reconnectms, "i", int, 0644,
  50                 "min connection retry interval (mS)");
  51
  52 static int max_reconnectms = 60000;
  53 CFS_MODULE_PARM(max_reconnectms, "i", int, 0644,
  54                 "max connection retry interval (mS)");
  55
  56 #if defined(__APPLE__) && !defined(__DARWIN8__)
  57 # define DEFAULT_EAGER_ACK 1
  58 #else
  59 # define DEFAULT_EAGER_ACK 0
  60 #endif
  61 static int eager_ack = DEFAULT_EAGER_ACK;
  62 CFS_MODULE_PARM(eager_ack, "i", int, 0644,
  63                 "send tcp ack packets eagerly");
  64
  65 static int typed_conns = 1;
  66 CFS_MODULE_PARM(typed_conns, "i", int, 0444,
  67                 "use different sockets for bulk");
  68
  69 static int min_bulk = (1<<10);
  70 CFS_MODULE_PARM(min_bulk, "i", int, 0644,
  71                 "smallest 'large' message");
  72
  73 #ifdef __APPLE__
  74 # ifdef __DARWIN8__
  75 #  define DEFAULT_BUFFER_SIZE (224*1024)
  76 # else
  77 #  define DEFAULT_BUFFER_SIZE (1152 * 1024)
  78 # endif
  79 #else
  80 # define DEFAULT_BUFFER_SIZE 0
  81 #endif
  82 static int tx_buffer_size = DEFAULT_BUFFER_SIZE;
  83 CFS_MODULE_PARM(tx_buffer_size, "i", int, 0644,
  84                 "socket tx buffer size (0 for system default)");
  85
  86 static int rx_buffer_size = DEFAULT_BUFFER_SIZE;
  87 CFS_MODULE_PARM(rx_buffer_size, "i", int, 0644,
  88                 "socket rx buffer size (0 for system default)");
  89
  90 static int nagle = 0;
  91 CFS_MODULE_PARM(nagle, "i", int, 0644,
  92                 "enable NAGLE?");
  93
  94 static int round_robin = 1;
  95 CFS_MODULE_PARM(round_robin, "i", int, 0644,
  96                 "Round robin for multiple interfaces");
  97
  98 static int keepalive = 30;
  99 CFS_MODULE_PARM(keepalive, "i", int, 0644,
 100                 "# seconds before send keepalive");
 101
 102 static int keepalive_idle = 30;
 103 CFS_MODULE_PARM(keepalive_idle, "i", int, 0644,
 104                 "# idle seconds before probe");
 105
 106 #ifdef HAVE_BGL_SUPPORT
 107 #define DEFAULT_KEEPALIVE_COUNT  100
 108 #else
 109 #define DEFAULT_KEEPALIVE_COUNT  5
 110 #endif
 111 static int keepalive_count = DEFAULT_KEEPALIVE_COUNT;
 112 CFS_MODULE_PARM(keepalive_count, "i", int, 0644,
 113                 "# missed probes == dead");
 114
 115 static int keepalive_intvl = 5;
 116 CFS_MODULE_PARM(keepalive_intvl, "i", int, 0644,
 117                 "seconds between probes");
 118
 119 static int enable_csum = 0;
 120 CFS_MODULE_PARM(enable_csum, "i", int, 0644,
 121                 "enable check sum");
 122
 123 static int inject_csum_error = 0;
 124 CFS_MODULE_PARM(inject_csum_error, "i", int, 0644,
 125                 "set non-zero to inject a checksum error");
 126 #ifdef CPU_AFFINITY
 127 static int enable_irq_affinity = 0;
 128 CFS_MODULE_PARM(enable_irq_affinity, "i", int, 0644,
 129                 "enable IRQ affinity");
 130 #endif
 131
 132 static int nonblk_zcack = 1;
 133 CFS_MODULE_PARM(nonblk_zcack, "i", int, 0644,
 134                 "always send ZC-ACK on non-blocking connection");
 135
 136 static unsigned int zc_min_payload = (16 << 10);
 137 CFS_MODULE_PARM(zc_min_payload, "i", int, 0644,
 138                 "minimum payload size to zero copy");
 139
 140 static unsigned int zc_recv = 0;
 141 CFS_MODULE_PARM(zc_recv, "i", int, 0644,
 142                 "enable ZC recv for Chelsio driver");
 143
 144 static unsigned int zc_recv_min_nfrags = 16;
 145 CFS_MODULE_PARM(zc_recv_min_nfrags, "i", int, 0644,
 146                 "minimum # of fragments to enable ZC recv");
 147
 148 #ifdef SOCKNAL_BACKOFF
 149 static int backoff_init = 3;
 150 CFS_MODULE_PARM(backoff_init, "i", int, 0644,
 151                 "seconds for initial tcp backoff");
 152
 153 static int backoff_max = 3;
 154 CFS_MODULE_PARM(backoff_max, "i", int, 0644,
 155                 "seconds for maximum tcp backoff");
 156 #endif
 157
 158 #if SOCKNAL_VERSION_DEBUG
 159 static int protocol = 3;
 160 CFS_MODULE_PARM(protocol, "i", int, 0644,
 161                 "protocol version");
 162 #endif
 163
 164 ksock_tunables_t ksocknal_tunables;
 165
 166 int ksocknal_tunables_init(void)
 167 {
 168
 169         /* initialize ksocknal_tunables structure */
 170         ksocknal_tunables.ksnd_timeout            = &sock_timeout;
 171         ksocknal_tunables.ksnd_nconnds            = &nconnds;
 172         ksocknal_tunables.ksnd_min_reconnectms    = &min_reconnectms;
 173         ksocknal_tunables.ksnd_max_reconnectms    = &max_reconnectms;
 174         ksocknal_tunables.ksnd_eager_ack          = &eager_ack;
 175         ksocknal_tunables.ksnd_typed_conns        = &typed_conns;
 176         ksocknal_tunables.ksnd_min_bulk           = &min_bulk;
 177         ksocknal_tunables.ksnd_tx_buffer_size     = &tx_buffer_size;
 178         ksocknal_tunables.ksnd_rx_buffer_size     = &rx_buffer_size;
 179         ksocknal_tunables.ksnd_nagle              = &nagle;
 180         ksocknal_tunables.ksnd_round_robin        = &round_robin;
 181         ksocknal_tunables.ksnd_keepalive          = &keepalive;
 182         ksocknal_tunables.ksnd_keepalive_idle     = &keepalive_idle;
 183         ksocknal_tunables.ksnd_keepalive_count    = &keepalive_count;
 184         ksocknal_tunables.ksnd_keepalive_intvl    = &keepalive_intvl;
 185         ksocknal_tunables.ksnd_credits            = &credits;
 186         ksocknal_tunables.ksnd_peertxcredits      = &peer_credits;
 187         ksocknal_tunables.ksnd_peerrtrcredits     = &peer_buffer_credits;
 188         ksocknal_tunables.ksnd_peertimeout        = &peer_timeout;
 189         ksocknal_tunables.ksnd_enable_csum        = &enable_csum;
 190         ksocknal_tunables.ksnd_inject_csum_error  = &inject_csum_error;
 191         ksocknal_tunables.ksnd_nonblk_zcack       = &nonblk_zcack;
 192         ksocknal_tunables.ksnd_zc_min_payload     = &zc_min_payload;
 193         ksocknal_tunables.ksnd_zc_recv            = &zc_recv;
 194         ksocknal_tunables.ksnd_zc_recv_min_nfrags = &zc_recv_min_nfrags;
 195
 196 #ifdef CPU_AFFINITY
 197         ksocknal_tunables.ksnd_irq_affinity       = &enable_irq_affinity;
 198 #endif
 199
 200 #ifdef SOCKNAL_BACKOFF
 201         ksocknal_tunables.ksnd_backoff_init       = &backoff_init;
 202         ksocknal_tunables.ksnd_backoff_max        = &backoff_max;
 203 #endif
 204
 205 #if SOCKNAL_VERSION_DEBUG
 206         ksocknal_tunables.ksnd_protocol           = &protocol;
 207 #endif
 208
 209 #if defined(CONFIG_SYSCTL) && !CFS_SYSFS_MODULE_PARM
 210         ksocknal_tunables.ksnd_sysctl             =  NULL;
 211 #endif
 212
 213         if (*ksocknal_tunables.ksnd_zc_min_payload < (2 << 10))
 214                 *ksocknal_tunables.ksnd_zc_min_payload = (2 << 10);
 215
 216         /* initialize platform-sepcific tunables */
 217         return ksocknal_lib_tunables_init();
 218 };
 219
 220 void ksocknal_tunables_fini(void)
 221 {
 222         ksocknal_lib_tunables_fini();
 223 }